Siemens SIMOTICS XP 1MB1 series - Interlock Circuit for Anti-Condensation Heating; Noise Emission

Preparing for use
4.8 Interlock circuit for anti-condensation heating
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
44 Operating Instructions, 06/2018, A5E44455710A
Converter
● Always operate explosion-protected machines fed from converters with temperature
sensors that directly monitor the temperature.
● Converter operation for these machines must be expressly certified. It is essential that
you observe the specific manufacturer's information and instructions. Converter, machine
and protective devices must be marked as belonging together and the permitted
operating data must be defined in the common EC or EU-type examination certificate.
Ex n and Ex ec
Line supply
● Set the protective device (e.g. circuit breaker) to the rated current (see the rating plate).
● Or protect the machine using the certified temperature monitoring specified on the
supplementary plate .
Converter
● Always operate explosion-protected machines fed from converters with temperature
sensors that directly monitor the temperature.
4.8
Interlock circuit for anti-condensation heating
If the anti-condensation heating is operated while the machine is running, this can increase
the temperatures inside the machine.
● Install an interlock circuit that switches off the anti-condensation heating once the main
machine is switched on.
● Only switch on the anti-condensation heating after the machine has been switched off.
See also
Switching on with the anti-condensation heating active (Page 103)
4.9
Noise emission
CAUTION
Hearing damage when operating three-phase motors
If the permissible sound pressure level is exceeded, hearing damage can occur when
operating three-phase motors at their rated power.
Observe the maximum permissible sound pressure level according to the ISO 1680
standard. The maximum permissible sound pressure level is 70 dB (A).